TY  - JOUR
T1  - Active play and screen time in US children aged 4 to 11 years in relation to sociodemographic and weight status characteristics: A nationally representative cross-sectional analysis
AU  - Anderson, Sarah E.
AU  - Economos, Christina D.
AU  - Must, Aviva
PY  - 2008
DO  - 10.1186/1471-2458-8-366
SP  - 366
JO  - BMC Public Health
VL  - 8
SN  - 1471-2458
ER  -